Current Transformers
transfers accurately proportional levels of current to multiple circuits.
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Product
Transformer Ratio Meters
TRM-200
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Three phase lead switching network • Excitation current meter Accessories: Range Extender 1:5.
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Product
Transformer Rectifier Assemblies
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Transformer rectifier assemblies are very useful in OEM applications when unregulated DC output is required. Input power can be single-phase or three phases. With single-phase input power, the output ripple is 50%. With three-phase input power, the output ripple is 5%. A 5% output ripple is a clear advantage. Hence, transformer rectifier assemblies with three-phase input power are more popular. Circuit breakers, fuses, voltmeters, and ammeters can be added per customer requirements. The assemblies can be an open frame or inside an indoor enclosure.
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Product
Leakage Current Tester
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Premier's Leakage Current Tester (also known as Hipot Tester) simulates the effect of a person touching exposed metal parts of a product and detects whether or not the leakage current that would flow through the person's body remains below a safe level.
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Product
High Voltage Transformers
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We, NMC, are engaged in manufacturing AC/DC High Voltage Transformers ranging from 5kv upto 150Kv having current capacity from 10mA to 200mA AC/DC in Air cooled or Oil Cooled type as per the customer requirement.
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Product
Current to Digital
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Analog Devices’ breakthrough current-to-digital converter technology is backed by award winning expertise to help solve your medical, industrial, and security application needs. Our high speed, high resolution ADC modules enable improved CT scanner data acquisition, photodiode sensors and power monitoring, spectroscopy, and high channel count data acquisition systems.
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Product
Transformer Protection
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Schweitzer Engineering Laboratories, Inc.
Transformer protection products and systems provide complete primary and backup protection for all types of transformer faults. They are suited for use in utility-, industrial-, and commercial-scale power transformer systems.
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Product
Programmable Current Preamplifier
99539
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The Model 99539 is a modular, multi-channel current preamplifier with parallel, logic level, gain control input. It consists of circuit boards which plug into a 3 1/2" high by 19" wide rack chassis.
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Product
Multi Mount Transformer
UET101
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UEi Test & Measurement Instruments
Multi Mount Control and Ringer transformer.
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Product
Isolation Transformers 230V
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PeakTech Prüf- und Messtechnik GmbH
Due to the high safety requirements in service workshops, schools and industry, an isolating transformer is an absolute prerequisite for carrying out professional repair work. Galvanic isolation between primary and secondary voltage during measurements and repairs on open devices guarantees a high safety standard for the user. Of course, galvanic isolation from the mains voltage also offers other advantages in electronics development, audio technology and many other areas.
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Product
Impulse Current Generator
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Weshine Electric Manufacturing Co., Ltd
Impulse current generator is mainly used to test the ability of electrical equipment to withstand strong impulse current, widely used in lightning arresters and electrical and electronic equipment in operation conditions of oscillation wave immunity test, can also be used for other research tests.
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Product
Current Sense Amplifiers
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Analog Devices’ current sense amplifiers offer excellent performance for a wide array of automotive and power management applications. These devices accurately amplify small voltages in the presence of large common-mode voltage, and provide high bandwidth, as well as level shifting and bidirectional capability. Excellent dc and ac accuracy over a wide temperature range from –40°C to +125°C minimizes errors in your measurement loop while not sacrificing on cost and package size.
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Product
Current sensors
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Assistance systems support the driver and assure safety in the latest generation of automobiles. Infotainment systems entertain passengers during car journeys and provide navigation. Seats are no longer adjusted manually, and doors are opened and closed with electric motors. The ever increasing electrification is driven by many other factors besides convenience and safety though.
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Product
Transformer Ratio Meter
TRM 1000
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AJIT Transformer Ratio Meters are the most modern turn's radio meters widely used to test the turn's ratio of high voltage windings, to low voltage windings, of Transformer. These meters are accurate, compact & light in weight.
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Product
Eddy Current Sensor
eddyNCDT 3001
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The eddyNCDT 3001 is a new, efficient eddy current sensor whose compact dimensions have to date only been reserved for inductive sensors and proximity sensors. The temperature-compensated design provides high stability even in fluctuating ambient temperatures. The eddyNCDT 3001 comes with integrated electronics, offering an outstanding price/performance ratio and easy operation. The eddyNCDT 3001 eddy current sensor is ideally suited to OEM integration and machine building applications. The sensor is factory-calibrated for ferromagnetic and non-ferromagnetic materials, which eliminates the need for field calibration of the sensor. The eddyNCDT 3001 is available with connector or with integrated cable. A robust design combined with the eddy current measuring principle enables measurements in harsh industrial environments (oil, pressure, dirt). In addition, the eddyNCDT 3001 is suitable for offshore/marine applications (salt water).
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Product
Three-Phase Transformer Winding Resistance Meters
TWA Advanced Series
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TWA Advanced series is the latest DV Power solution for three-phase transformer winding resistance measurement and tap changer analysis. They are capable of testing six transformer windings with a single cable connection, as well as three-phase automatic transformer demagnetization. It has the option of the automated test mode, where the instrument operates the tap changer without operator input (minimizing the risk of human error) and records winding resistance results based on pre-selected stabilization criteria.The unique DVtest method of tap changer analysis enables checking the moving contacts of on-load tap changers during the transition, measuring the transition time, detecting open circuits, and many other types of faults. It is performed with 0.1 ms sampling rate, together with the measurement of tap changer motor current which detects motor and mechanical issues. A special proprietary algorithm is used for testing tap changers connected through a built-in series (booster) transformer. The DVtest can be performed either on one phase or simultaneously on three phases. It can also be performed together with the winding resistance test in all tap positions.A unique advantage of TWA Advanced instruments is the capability of simultaneously testing the winding resistance of all three phases of a three-phase transformer connected in a YN configuration. This can significantly speed up the testing– for example, it enables the operator to perform 33 measurements instead of 99 on a tap changer with 33 tap positions.TWA500 is equipped with a large 10.1” graphical touch-screen display, while TWA400 has a 7” graphical touch-screen display. Besides making the interface much more user-friendly compared to older winding ohmmeters, it also enables certain test options that were previously available only with DV-Win software. The most important among them are DVtest, tap changer motor current measurement, “Heat Run” test, test templates, and automatic test mode.
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Product
Current Clamps and Sensors
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Are designed for measuring leakage current diverted towards the earth. It enables the fault to be located or anticipated without disconnecting the equipment linked. It is specially designed to detect low fault currentson power circuits.
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Product
Eddy Current Testing
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PRÜFTECHNIK Condition Monitoring GmbH
Nondestructive testing systems from Prüftechnik ensure that manufacturers of semi-finished products and their customers obtain the best possible quality. Our eddy current testing systems and sensors provide quality assurance and process control and help you guarantee the security of your investment.
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Product
High Impedance Transformers
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Osborne high impedance transformers are used to step-up, step-down and isolate voltages in single phase and three phase circuits. A properly designed high impedance transformer can be used an an equivalent to an isolation transformer connected in series with an inductor. The high impedance characteristic may be employed as a current limiting feature in both the primary and secondary circuity.
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Product
Three Phase Transformer Ratio Meter
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*Three phase lead switching network. *Excitation current meter Accessories: Range Extender 1:5
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Product
Universal Mount Transformer
UET105
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UEi Test & Measurement Instruments
Universal Mount Control and Ringer transformer.
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Product
Eddy Current Scanners
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United Western Technologies Corp
a non-destructive testing (NDT) device that uses electromagnetic induction to detect surface and near-surface flaws in conductive materials.
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Product
Special Application Transformers
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Special Application Transformers are available in maintenance-friendly designs with high reliability and minimum losses. These transformers can easily withstand the harshest weather and other conditions to meet the exact demands of power and other industrial applications. They are widely used in different sectors from mining, steel manufacturing, offshore oil, electrolysis to gas platforms. They are easy to install and remove transformers available with highly efficient design to ensure maximum performance.
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Product
Control Transformers
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ENTES control transformers ensure the safe operation of measuring devices with 24 VAC supply voltage for electical control panels. Input voltages of Control transformers are either fixed (230 or 400V) or selectable with taps (400;230+15-15).
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Product
NI-9208, 500 S/s, ±20 mA, 16-Channel C Series Current Input Module
785041-01
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500 S/s, ±20 mA, 16-Channel C Series Current Input Module - The NI‑9208 is designed with industrial systems in mind. It includes a high-resolution mode with 50/60 Hz rejection to remove low frequency noise. It has high-channel density to reduce the number of modules needed, which leaves slots open for other measurement types or for reducing the overall per channel cost of the system. The NI‑9208 uses a standard D‑SUB connection for use with cables and connector blocks.
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Product
Through Hole type DC Current Sensor／for Load Current Measurements
MOHT-800B Open loop method
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*Hall effect measurement for DC/AC/Pulsed current.*For the use of UPS, batteries, switching power supply, DC motor drivers, etc.
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Product
High Current DC Load
3350F Series
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3350F has its own control and display panel, CC/CR/CV/CP/Dynamic modes, 150 sets Store/Recall memory which provides load set-up more efficiently, also can be remote controlled via GPIB, RS232、USB and LAN interface.
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Product
Three-Phase Transformer Demagnetizer
DEM60C
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After a DC current test, such as winding resistance measurement, the magnetic core of a power or instrument transformer may be magnetized (remnant magnetism). It can cause various problems such as wrong diagnostics, inaccurate measurements on a transformer, inrush current at the start-up of a power transformer, or incorrect operation of protective relays due to magnetized CT cores. The best way to eliminate this source of potential problems is to use demagnetizer on the power or instrument transformer.The DEM60C is a fully automatic test instrument which performs three-phase transformer demagnetization. Transformer magnetic core demagnetization requires the application of AC current with magnitude decreasing to zero. DEM60C provides this AC current by internally changing the polarity of a controlled DC current. During the demagnetization process, the instrument supplies the current at decreasing magnitude for each step, following a proprietary algorithm. It can demagnetize single-phase and three-phase power transformers.The instrument can be connected to all three phases of a power transformer to be demagnetized, on either the primary or the secondary side. If a user selects specific vector diagrams for different types of transformers, DEM60C will run a specific demagnetization procedure for each transformer type (i.e., single phase, delta, wye/star, zig-zag.) without switching the test leads.DEM60C enables safe and efficient power transformer demagnetization. The instrument automatically regulates the injection of current and discharging energy from the inductance. During and after the operation, an intrinsically safe discharge circuit with an indicator rapidly dissipates the stored magnetic energy. The discharging circuit is independent of the power supply, which improves its reliability in case of loss of power.Test currents of up to 60 A DC enable efficient demagnetization of even the largest power transformers. Using a DV Win software, it is possible to control DEM60C externally.
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Product
Power Transformer
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Transformer turn ratio meter is special designed for power transformer (single phase & three phases) and instrument transformer testing, suitable for testing in substation, transformer manufacturer, meter manufacturer. It helps to detect faulty transformer winding and tap changer position. It’s fully automatic device, can recognizes winding connection and vector group number of transformer winding. The user only need connect measuring cable and press start button and come out the test result.
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Product
Pulsed Eddy Current (PEC)
Lyft®
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Lyft is a high-performance solution reinventing pulsed eddy current (PEC). The patent-pending Eddyfi® solution features:
